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BMC Complementary Medicine and Therapies
Published in: BMC Complementary Medicine and Therapies 1/2019

Open Access 01-12-2019 | Acupuncture | Research article

The effects of acupuncture on pregnancy outcomes of in vitro fertilization: a systematic review and meta-analysis

Authors: Zheng-yun Xie, Zhi-hang Peng, Bing Yao, Li Chen, Yan-yun Mu, Jie Cheng, Qian Li, Xi Luo, Peng-yan Yang, You-bing Xia

Published in: BMC Complementary Medicine and Therapies | Issue 1/2019

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Abstract

Background

The effects of acupuncture on in vitro fertilization (IVF) outcomes remain controversial. And the variation in participant, interventions, outcomes studied, and trial design may relate to the efficacy of adjuvant acupuncture.

Methods

We searched digital databases for relevant studies, including Embase, PubMed, Cochrane Library and some Chinese databases up to December 2018, for randomized controlled trials (RCTs) evaluating the effects of acupuncture on women undergoing IVF. We included studies with intervention groups using needling, and control groups consisting of no acupuncture or sham (placebo) acupuncture. Primary outcomes were clinical pregnancy rate (CPR) and live birth rate (LBR). Meta-regression and subgroup analysis were conducted on the basis of eight pre-specified covariates to investigate the variances of the effects of adjuvant acupuncture on pregnancy rates and the sources of heterogeneity.

Results

Twenty-seven studies with 6116 participants were included. The pooled clinical pregnancy rate (CPR) from all of acupuncture groups was significantly greater than that of control groups (RR 1.21, 95% CI: 1.07–1.38), whereas the pooled live birth rate (LBR) was not. Meta-regression subgroup analysis showed a more significant benefit of acupuncture for repeated IVF cycle proportion (number of women with a history of prior unsuccessful IVF attempt divided by number of women included in each trial) ≥ 50% group (CPR: RR 1.60, 95% CI: 1.28–2.00; LBR: RR 1.42, 95% CI: 1.05–1.92), and this covariate explained most of the heterogeneity (CPR and LBR: adjusted R2 = 100 and 87.90%). Similar results were found between CPR and number of acupuncture treatments (CPR: p = 0.002, adjusted R2 = 51.90%), but not LBR.

Conclusions

Our analysis finds a benefit of acupuncture for IVF outcomes in women with a history of unsuccessful IVF attempt, and number of acupuncture treatments is a potential influential factor. Given the poor reporting and methodological flaws of existing studies, studies with larger scales and better methodologies are needed to verify these findings.
Appendix
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Metadata
Title
The effects of acupuncture on pregnancy outcomes of in vitro fertilization: a systematic review and meta-analysis
Authors
Zheng-yun Xie
Zhi-hang Peng
Bing Yao
Li Chen
Yan-yun Mu
Jie Cheng
Qian Li
Xi Luo
Peng-yan Yang
You-bing Xia
Publication date
01-12-2019
Publisher
BioMed Central
Keyword
Acupuncture
Published in
BMC Complementary Medicine and Therapies / Issue 1/2019
Electronic ISSN: 2662-7671
DOI
https://doi.org/10.1186/s12906-019-2523-7

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